blob: 0cd36d0f471c62897dffdc5b58207d5ea7306050 [file] [log] [blame]
/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.bluetooth;
import android.annotation.Nullable;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import androidx.annotation.VisibleForTesting;
import androidx.fragment.app.FragmentActivity;
import static android.view.WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
/**
* BluetoothPairingDialog asks the user to enter a PIN / Passkey / simple confirmation
* for pairing with a remote Bluetooth device. It is an activity that appears as a dialog.
*/
public class BluetoothPairingDialog extends FragmentActivity {
public static final String FRAGMENT_TAG = "bluetooth.pairing.fragment";
private BluetoothPairingController mBluetoothPairingController;
private boolean mReceiverRegistered = false;
/**
* Dismiss the dialog if the bond state changes to bonded or none,
* or if pairing was canceled for {@link BluetoothPairingController#mDevice}.
*/
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothDevice.ACTION_BOND_STATE_CHANGED.equals(action)) {
int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE,
BluetoothDevice.ERROR);
if (bondState == BluetoothDevice.BOND_BONDED ||
bondState == BluetoothDevice.BOND_NONE) {
dismiss();
}
} else if (BluetoothDevice.ACTION_PAIRING_CANCEL.equals(action)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if (device == null || mBluetoothPairingController.deviceEquals(device)) {
dismiss();
}
}
}
};
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().addSystemFlags(SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
Intent intent = getIntent();
if (intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE) == null) {
// Error handler for the case that dialog is started from adb command.
finish();
return;
}
mBluetoothPairingController = new BluetoothPairingController(intent, this);
// build the dialog fragment
boolean fragmentFound = true;
// check if the fragment has been preloaded
BluetoothPairingDialogFragment bluetoothFragment =
(BluetoothPairingDialogFragment) getSupportFragmentManager().
findFragmentByTag(FRAGMENT_TAG);
// dismiss the fragment if it is already used
if (bluetoothFragment != null && (bluetoothFragment.isPairingControllerSet()
|| bluetoothFragment.isPairingDialogActivitySet())) {
bluetoothFragment.dismiss();
bluetoothFragment = null;
}
// build a new fragment if it is null
if (bluetoothFragment == null) {
fragmentFound = false;
bluetoothFragment = new BluetoothPairingDialogFragment();
}
bluetoothFragment.setPairingController(mBluetoothPairingController);
bluetoothFragment.setPairingDialogActivity(this);
// pass the fragment to the manager when it is created from scratch
if (!fragmentFound) {
bluetoothFragment.show(getSupportFragmentManager(), FRAGMENT_TAG);
}
/*
* Leave this registered through pause/resume since we still want to
* finish the activity in the background if pairing is canceled.
*/
registerReceiver(mReceiver, new IntentFilter(BluetoothDevice.ACTION_PAIRING_CANCEL));
registerReceiver(mReceiver, new IntentFilter(BluetoothDevice.ACTION_BOND_STATE_CHANGED));
mReceiverRegistered = true;
}
@Override
protected void onDestroy() {
super.onDestroy();
if (mReceiverRegistered) {
mReceiverRegistered = false;
unregisterReceiver(mReceiver);
}
}
@VisibleForTesting
void dismiss() {
if (!isFinishing()) {
finish();
}
}
}